发明名称 |
Interlayer hot compaction |
摘要 |
A process for the production of a polymeric article comprises: (a) forming a ply having successive layers, namely, (i) a first layer made up of strands of an oriented polymer material; (ii) a second layer of a polymeric material; (iii) a third layer made up of strands of an oriented polymeric material, wherein the second layer has a lower peak melting temperature that of the first and third layers; (b) subjecting the ply to conditions of time, temperature, and pressure sufficient to melt a proportion of the fits layer, to melt the second layer entirely, and to melt a proportion of the third layer, and to compact the ply; and (c) cooling the compacted ply. The resultant articles have good mechanical properties yet may be made at a lower compaction temperature than articles not employing the second layer, leading to a more controllable manufacturing process. |
申请公布号 |
US9403341(B2) |
申请公布日期 |
2016.08.02 |
申请号 |
US201414502377 |
申请日期 |
2014.09.30 |
申请人 |
Propex Operating Company LLC |
发明人 |
Ward Ian MacMillan;Hine Peter John;Norris Keith |
分类号 |
B32B7/02;B32B5/26;B29C43/00;D04H1/559;D04H13/00;B32B27/08;B32B27/32;B29C43/20;B29K105/00;B29K105/06;B29K105/08 |
主分类号 |
B32B7/02 |
代理机构 |
Husch Blackwell LLP |
代理人 |
Husch Blackwell LLP |
主权项 |
1. A polymeric article having a non-planar shape comprising a compacted ply including at least three layers that is adapted to be subjected to conditions of time, temperature and a single compaction temperature to melt at least 1% but no more than 30% by volume of first and third layers and substantially all of a second layer wherein the compacted ply is further configured to be subjected to a compaction pressure to form a non-planar article, wherein a thickness of the first and third layers individually exceed a thickness of the second layer, and wherein the first and third layers of ply comprise the same polymer and the second layer comprises a polymer with the same chemical composition and grade of polymers as the first and third layers with a lower degree of molecular orientation and lower peak melting temperature than that of the first and third layers. |
地址 |
Chattanooga TN US |